8 Hour Energy Keto-Friendly Sugar-free Zero Calorie, 300g

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  • 85 Servings per 300g Container
  • 166mg of Caffeine Anhydrous
  • 830mg of Taurine and Tyrosine
  • GLUTEN-FREE: Certified to be Gluten-Free by the Gluten-Free Organization.
  • THE DATE YOU SEE ON THE BOTTLE: To be compliant with Good Manufacturing Practices (GMPs) and the Food and Drug Administration (FDA) regulations, we have changed the date on the top of our product’s lid from “Expiration date” to “Date Of Manufacturing (DOM)”
  • B vitamins
  • No crash or jitters
  • VEGAN:Certified to be Vegan by the American Vegetarian Association.

Muscle Feast 8 Hour - Energy Powder:
  • Provides long-lasting energy
  • Improves focus & cognition
  • Decreases fatigue
  • Supports fat-burning

What is 8 Hour - Energy Powder?

8 Hour Powder is a fantastic energy drink. Packed with the best ingredients for the best price. This energy drink is sure to give you the extra boost you need to get through the longest days. 8 Hour - Energy Powder has 166 mg of caffeine per serving, plus power energy boosters like Vitamins B3, B6, and B12. Unlike other energy drinks that give you jitters followed by sudden crashes, we have formulated 8 Hour with Taurine and tyrosine to offset those burdensome side effects. 

8 Hour powder stacks perfectly with vasodilator pre-workouts, with or without caffeine.

Available in 4 flavor options, plus unflavored:



Blue Ice Pop

Green Apple




    As an adult dietary supplement, take one serving (3.25g) in 8 ounces of water to help improve energy and focus. Do not consume more than three servings in 24 hours.


    With so many benefits, Taurine was the perfect choice for our 8 Hour formula. Studies on Taurine show that it:

    • Help the body burn fat.
    • Raise testosterone level.
    • Improve insulin sensitivity.
    Many athletes have even seen an increased level of performance during training and faster recovery post training.

    Zhang et al. (2004) found that individuals who supplemented with taurine for one week before an exhaustive exercise bout significantly improved time to exhaustion, VO2 max, and maximal workload. It also decreased exercise-induced DNA damage.


    L-Tyrosine helps to activate metabolic pathways that produce hormones epinephrine and norepinephrine. These hormones are typically produced during moments of stress on the body and provide a boost of adrenaline, giving you that fight or flight feeling. Epinephrine and norepinephrine are depleted quickly during these moments of stress due to a lack of L-Tyrosine.

    The addition of this amino acid will help give you an extra PUSH and can make a big difference to help you FIGHT through your workouts and plateaus.

    Hoffman et al. (2010) research results indicate that acute ingestion of the supplements L-tyrosine and anhydrous caffeine, helped healthy college students maintain reaction time, subjective feelings of focus and alertness to both visual and auditory stimuli following exhaustive exercise.

    Caffeine Anhydrous

    Caffeine Anhydrous is simply caffeine with no water (around .05%), which has been shown to make caffeine anhydrous more potent because the body will absorb it more readily.

    Although caffeine can affect a wide variety of motor and mental functions, most commonly:

    • Improve endurance exercise.
    • Cognitive performance.
    • Improve energy levels.
    • Increase focus for sustained amounts of time.

    Caffeine has also been shown to have a thermogenic effect (heating/calorie burning) at rest and may increase the use of fats for fuel during exercise.
    According to the research, higher doses of caffeine, in the 250-450mg range, are needed to provide an ergogenic benefit. For this reason, we recommend either stacking this product with another pre-workout or taking two scoops before exercising.

    In a study conducted by Astorino et al. (2010), active men given caffeine before resistance training were able to increase maximal torque, power, and volume by 5-8%